package io;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

public class Input {
    public static void main(String[] args) throws IOException {
        FileOutputStream fileOutputStream = new FileOutputStream("./fos.dat");
        fileOutputStream.write(1);
        System.out.println("OK");
        fileOutputStream.close();

    }
}
